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From "James E. King, III (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (THRIFT-4102) TBufferedTransport performance issue since 0.10.0
Date Thu, 23 Feb 2017 16:58:44 GMT

     [ https://issues.apache.org/jira/browse/THRIFT-4102?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

James E. King, III reassigned THRIFT-4102:
------------------------------------------

    Assignee: James E. King, III

> TBufferedTransport performance issue since 0.10.0
> -------------------------------------------------
>
>                 Key: THRIFT-4102
>                 URL: https://issues.apache.org/jira/browse/THRIFT-4102
>             Project: Thrift
>          Issue Type: Bug
>          Components: Python - Library
>    Affects Versions: 0.10.0
>            Reporter: Jin Yao
>            Assignee: James E. King, III
>
> I upgrade thrift from 0.9.3 to 0.10.0, and our rpc calls slow down.
> I digged around the code, and find maybe it caused by the write function in TBufferedTransport.
> The last line seems useless, but cost time.
> {code:title=TTransport.py|borderStyle=solid}
> def write(self, buf):
>     try:
>         self.__wbuf.write(buf)
>         except Exception as e:
>             # on exception reset wbuf so it doesn't contain a partial function call
>             self.__wbuf = BufferIO()
>             raise e
>     self.__wbuf.getvalue() # it seems useless, but cost time
> {code}



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